Caverject comes in three different dosages. For the vials these include 10mcg, 20mcg and 40mcg, but the prescribing clinician can alter the dosage if needed. Caverject Impulse Dual Chamber dosages only come in 10mcg and 20mcg, but you can administer it as more or less – in increments of 25%. So the starting dose with the dual chamber is often 2.5mcg, which is gradually increased until the ideal dose is reached.
Finding the right dosage of Caverject can take time, though. The standard dosage tends to be between 5mcg (using half of the 10mcg dual chamber) and 20mcg, which is usually effective for the men using it.
Your doctor will slowly increase the dosage to find the right one for you, minimising risks and maximising effectiveness, a process called titration. If you find the medication doesn’t provide you with the results you need without unwanted side effects, a different erectile dysfunction treatment might be suggested.
Are Viridal dosages the same as Caverject?
Viridal Duo is essentially the same product as Caverject in regards to its active ingredient and dosages. Whilst both products are injected, the injection devices aren’t the same, so the instructions will differ slightly.
If you’re swapping between Caverject and Viridal, be sure to tell your prescribing clinician so they can make sure you’re comfortable with the new instructions.
Caverject Dual Chamber, Vials & Viridal Duo 10mcg
The lowest dosage product available for alprostadil injections is 10mcg. Caverject Dual Chamber and Caverject 10mcg are essentially the same product but the Dual Chamber device is unique to Caverject whereas the vials are administered through a needle. You can set the dosage on the device or, when using the vials, it can be measured on the syringe.
The Viridal 10 starter pack uses the EasyDuo device, its instructions differ slightly from the Caverject Dual Chamber.
At the start of your treatment, it’s likely that your doctor will recommend a dosage of 2.5mcg to 5mcg, whichever the product. The 10mcg dosage is the lowest of the standard products but it’s usually effective enough for most that use it.
If you don’t achieve the results you want from this dosage, and you haven’t experienced any unpleasant side effects, your prescribing clinician might suggest increasing the dosage.
Caverject Dual Chamber, Vials & Viridal Duo 20mcg
The Caverject 20mcg injection is at the higher end of the standard dosages. As you might expect, it’s more reliable but also presents a higher risk of side effects, as will all alprostadil 20mcg products.
This also goes for the Viridal Duo 20mcg continuation pack, although it’s likely you’ll only be prescribed this if it’s been proven you can tolerate the dosage. If this dosage is still found to be lacking, it can still be increased to 40mcg.
Caverject Vials & Viridal Duo 40mcg
The 40mcg dose is the highest dosage of Caverject and Viridal Duo. It can be found in the products Viridal Duo Continuation 40mcg and Caverject 40mcg vials. There is no Caverject Dual Chamber 40mcg dosage.
It’s unlikely your doctor will prescribe this dosage as a starting point, unless you have previous experience with the medication and it was found that the dosage didn’t cause you any side effects. More often than not, you’ll build up to Caverject 40mcg and Viridal 40 mcg dosages after the lower strength products have been found to be ineffective.